Sensing jealousy from my 2 year old 😯

I can't believe what my baby girl just did! She took all of the baby clothes out of the draw and threw them on the floor. I'm sensing a lil jealousy already. She knows that mommy and daddy love her very much and would never treat her any different. She's a very smart girl so I know that she's thinking the baby will get all of the attention. I try to involve her as much as possible. She rubs my stomach and talks to her baby sister but sometimes she can be a bit rough. I hope she doesn't be rough when the baby arrives. What can I do to keep her involved once the baby gets here?